Manifold fixed or loose

[eey_ore_9]

NO NEED FOR YOU ROLL YOUR TWINSET OFF THE BACK OF YOUR MOTOR TO TEST MANIFOLD FOR ME..! jUST YOUR OPINION WOULD HAVE BEEN FINE, LMAO. ANSWER TO SOME COMMENTS IF SHUT OF VALVE ANGLED SLIGHTY TOWARD NECK IF KNOCKED IT WOULD MOVE TOWARD YOUR NECK SO YOU COULD STILL REACH IT. I STILL TAKE YOUR COMMENTS ON BOARD THOUGH!!!!!

[nickb]

Originally Posted by eey_ore_9

I STILL TAKE YOUR COMMENTS ON BOARD THOUGH!!!!!

Take this one on board:

STOP FUCKING SHOUTING!!

[japandiver]

I am surprised that people are advocating using a critical hp seal, designed for static applications, as a shock absorber!

IMO the barrel or face seals in a manifold are a critical hp application and should not be subjected to movement - the seals are not designed for dynamic applications. The manifold should not be free to move - such that any impact forces are transferred through the fixed components of the manifold and away from those fragile seals that are keeping your breathing gas from bubbling away.

Underwater I can see no scenario when you can hit something hard enough to damage the manifold (unless someone drops something 'kin big on you when a leaking manifold is the least of your worries). Having mistakenly flown ROV's, which are a lot bigger and faster than any diver or DPV, into all manner of lumps I don't think you need to worry about dinging a manifold underwater.

If you drop a twinset and bend the manifold then that's your look out for not looking after your kit - a loose manifold won't offer a great deal of help either.

So my advice is to set the manifold up so that the knob is in the right place for you to reach it and then to tighten it all up so that it doesn't move.

Hugh

[PBrown]

Originally Posted by japandiver

I am surprised that people are advocating using a critical hp seal, designed for static applications, as a shock absorber!

IMO the barrel or face seals in a manifold are a critical hp application and should not be subjected to movement - the seals are not designed for dynamic applications.

Agreed, & that's why several of the posters have distinguished between the MDE manifold which (IIRC) uses a face seal and others which don't. Turning a barrel ring manifold is not a problem.

cheers,
Paul

[Garf]

Originally Posted by nickb

Take this one on board:

STOP FUCKING SHOUTING!!

sublime

[divingniknaks]

Originally Posted by japandiver

Underwater I can see no scenario when you can hit something hard enough to damage the manifold

Scootering in caves.

Scootering through wreck superstructure.

You could hit something quite fast that way, although as I said before, where's your head gonna be ?

.

[Rob Dobson]

Originally Posted by divingniknaks

You could hit something quite fast that way, although as I said before, where's your head gonna be ?

.

From experience - typically several inches inside whatever hole you were aiming at; which unfortunately wasn't quite as big as you thought it was

[wilbo]

Originally Posted by Rob Dobson

From experience - typically several inches inside whatever hole you were aiming at; which unfortunately wasn't quite as big as you thought it was

there's a pattern there Rob.. (Kyarra wasn't it? )

[Rob Dobson]

Originally Posted by wilbo

there's a pattern there Rob.. (Kyarra wasn't it? )

Er.... Maybe. The JEL was definitely funnier - didn't it take two of you to get me out of that one?

[Bardo]

Originally Posted by Rob Dobson

Er.... Maybe. The JEL was definitely funnier - didn't it take two of you to get me out of that one?

Hehe. Nothing quite like being wedged head first inside a dark hole, eh Rob!

Yup - I'm still in one of those moods! lol